EP 0430785 B1 19960828 - Polymers with improved heat resistance containing maleimide derivative units
Title (en)
Polymers with improved heat resistance containing maleimide derivative units
Title (de)
Polymere mit verbesserter Wärmebeständigkeit enthaltend Maleimidderivateinheiten
Title (fr)
Polymères comportant des motifs dérivés de maléimides, à résistance à la chaleur améliorée
Publication
Application
Priority
FR 8915581 A 19891127
Abstract (en)
[origin: EP0430785A2] Process for anionic polymerisation of an N-substituted maleimide in a solvent and in the presence of at least one alkali metal organometallic initiator, where the initiator employed is sec-butyl-lithium, sodium alcoholates, diphenylmethylpotassium or naphthalene- lithium or -sodium; a process for the preparation of polymer based on N-substituted maleimide with a narrow molecular mass distribution by anionic polymerisation of maleimide in a solvent and in the presence of an initiating system consisting of at least one alkali metal organometallic initiator and of at least one inorganic salt and/or an organic salt of an alkali or alkaline-earth metal; a polymer block based on N-substituted maleimide of mean molecular weight 12,000-100,000; a polymer block based on N-substituted maleimide of polydispersity 1.1-1.5; and a multiblock copolymer in which at least one polymer block based on N-substituted maleimide is used in combination with at least one polymer block based on (meth)acrylic monomer.
IPC 1-7
IPC 8 full level
C08F 4/06 (2006.01); C08F 4/46 (2006.01); C08F 22/36 (2006.01); C08F 22/40 (2006.01); C08F 122/40 (2006.01); C08F 293/00 (2006.01); C08F 297/00 (2006.01); C08F 297/02 (2006.01)
CPC (source: EP US)
C08F 122/40 (2013.01 - EP US); C08F 297/026 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0430785 A2 19910605; EP 0430785 A3 19910821; EP 0430785 B1 19960828; AT E141931 T1 19960915; CA 2030683 A1 19910528; CA 2030683 C 19960917; DE 69028282 D1 19961002; DE 69028282 T2 19970306; ES 2091233 T3 19961101; FI 905818 A0 19901126; FI 905818 A 19910528; FR 2655049 A1 19910531; FR 2655049 B3 19920221; IE 904263 A1 19910605; JP H03195711 A 19910827; JP H0670099 B2 19940907; NO 905111 D0 19901126; NO 905111 L 19910528; PT 95998 A 19910913; US 5294674 A 19940315; US 5591816 A 19970107; US 5668231 A 19970916
DOCDB simple family (application)
EP 90403331 A 19901123; AT 90403331 T 19901123; CA 2030683 A 19901126; DE 69028282 T 19901123; ES 90403331 T 19901123; FI 905818 A 19901126; FR 8915581 A 19891127; IE 426390 A 19901126; JP 32510890 A 19901127; NO 905111 A 19901126; PT 9599890 A 19901126; US 16703293 A 19931216; US 71248996 A 19960911; US 80467491 A 19911210